Loading...
Please wait, while we are loading the content...
Similar Documents
Computer predictions of photochemical oxidant levels for initial precursor concentrations characteristic of southeastern virginia
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McLain, A. G. Wakelyn, N. T. |
| Copyright Year | 1979 |
| Description | A computer study was performed with a photochemical box model, using a contemporary chemical mechanism and procedure, and a range of initial input pollutant concentrations thought to encompass those characteristic of the Southeastern Virginia region before a photochemical oxidant episode. The model predictions are consistent with the expectation of high summer afternoon ozone levels when initial nonmethane hydrocarbon (NMHC) levels are in the range 0.30-0.40 ppmC and NOx levels are in the range 0.02-0.05 ppm. Calculations made with a Lagrangian model, for one of the previously calculated cases, which had produced intermediate afternoon ozone levels, suggest that urban source additions of NMHC and NOx exacerbate the photochemical oxidant condition. |
| File Size | 934830 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790019546 |
| Archival Resource Key | ark:/13960/t6rz42q2n |
| Language | English |
| Publisher Date | 1979-06-01 |
| Access Restriction | Open |
| Subject Keyword | Environment Pollution Concentration Composition Photochemical Reactions Hydrocarbons Nitrogen Oxides Ozone Dynamic Models Oxidation Computerized Simulation Virginia Graphs Charts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
